include/sys/agpgart.h

   1 /*
   2  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*
   7  * Copyright (c) 2000 Doug Rabson
   8  * Copyright (c) 2009, Intel Corporation.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  */
  33
  34 #ifndef _SYS_AGPGART_H
  35 #define _SYS_AGPGART_H
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 #define AGP_NORMAL      0       /* mapped to user land, no cache */
  42
  43 typedef struct _agp_version {
  44         uint16_t        agpv_major;
  45         uint16_t        agpv_minor;
  46 } agp_version_t;
  47
  48
  49 typedef struct  _agp_info {
  50         agp_version_t   agpi_version;
  51         uint32_t        agpi_devid;     /* bridge vendor + device */
  52         uint32_t        agpi_mode;      /* mode of brdige */
  53         ulong_t         agpi_aperbase;  /* base of aperture */
  54         size_t          agpi_apersize;  /* aperture range size */
  55         uint32_t        agpi_pgtotal;   /* max number of pages in aperture */
  56         uint32_t        agpi_pgsystem;  /* same as pg_total */
  57         uint32_t        agpi_pgused;    /* NUMBER of currently used pages */
  58 } agp_info_t;
  59
  60 typedef struct _agp_setup {
  61         uint32_t        agps_mode;
  62 } agp_setup_t;
  63
  64 typedef struct _agp_allocate {
  65         int32_t         agpa_key;
  66         uint32_t        agpa_pgcount;
  67         uint32_t        agpa_type;
  68         uint32_t        agpa_physical;  /* for i810 only, private */
  69 } agp_allocate_t;
  70
  71 typedef struct _agp_bind_pages {
  72         uint32_t        agpb_pgstart;
  73         pfn_t           *agpb_pages;
  74         unsigned long   agpb_pgcount;
  75 } agp_bind_pages_t;
  76
  77 typedef struct _agp_unbind_pages {
  78         uint32_t        agpb_pgstart;
  79         unsigned long   agpb_pgcount;
  80         uint32_t        agpb_type;
  81 } agp_unbind_pages_t;
  82
  83 typedef struct _agp_bind {
  84         int32_t         agpb_key;
  85         uint32_t        agpb_pgstart;
  86 } agp_bind_t;
  87
  88 typedef struct _agp_unbind {
  89         int32_t         agpu_key;
  90         uint32_t        agpu_pri;       /* no use in solaris */
  91 } agp_unbind_t;
  92
  93 #define AGPIOC_BASE             'G'
  94 #define AGPIOC_INFO             _IOR(AGPIOC_BASE, 0, 100)
  95 #define AGPIOC_ACQUIRE          _IO(AGPIOC_BASE, 1)
  96 #define AGPIOC_RELEASE          _IO(AGPIOC_BASE, 2)
  97 #define AGPIOC_SETUP            _IOW(AGPIOC_BASE, 3, agp_setup_t)
  98 #define AGPIOC_ALLOCATE         _IOWR(AGPIOC_BASE, 4, agp_allocate_t)
  99 #define AGPIOC_DEALLOCATE       _IOW(AGPIOC_BASE, 5, int)
 100 #define AGPIOC_BIND             _IOW(AGPIOC_BASE, 6, agp_bind_t)
 101 #define AGPIOC_UNBIND           _IOW(AGPIOC_BASE, 7, agp_unbind_t)
 102 #define AGPIOC_IOREMAP          _IO(AGPIOC_BASE, 8)
 103 #define AGPIOC_IOREMAP_FREE     _IO(AGPIOC_BASE, 9)
 104 #define AGPIOC_READ             _IO(AGPIOC_BASE, 10)
 105 #define AGPIOC_WRITE            _IO(AGPIOC_BASE, 11)
 106 #define AGPIOC_FLUSHCHIPSET     _IO(AGPIOC_BASE, 12)
 107 #define AGPIOC_PAGES_BIND       _IOW(AGPIOC_BASE, 13, agp_bind_pages_t)
 108 #define AGPIOC_PAGES_UNBIND     _IOW(AGPIOC_BASE, 14, agp_unbind_pages_t)
 109 #define AGPIOC_PAGES_REBIND     _IO(AGPIOC_BASE, 15)
 110
 111 /* AGP status register bits definition */
 112 #define AGPSTAT_RQ_MASK         0xff000000      /* target only */
 113 #define AGPSTAT_SBA             (0x1 << 9)      /* always 1 for 3.0 */
 114 #define AGPSTAT_OVER4G          (0x1 << 5)
 115 #define AGPSTAT_FW              (0x1 << 4)
 116 #define AGPSTAT_RATE_MASK       0x7
 117 /* rate for 2.0 mode */
 118 #define AGP2_RATE_1X            0x1
 119 #define AGP2_RATE_2X            0x2
 120 #define AGP2_RATE_4X            0x4
 121 /* AGP 3.0 only bits */
 122 #define AGPSTAT_ARQSZ_MASK      (0x7 << 13)     /* target only */
 123 #define AGPSTAT_CAL_MASK        (0x7 << 10)
 124 #define AGPSTAT_GART64B         (0x1 << 7)      /* target only */
 125 #define AGPSTAT_MODE3           (0x1 << 3)
 126 /* Rate for 3.0 mode */
 127 #define AGP3_RATE_4X            0x1
 128 #define AGP3_RATE_8X            0x2
 129
 130 /* AGP command register bits definition */
 131 #define AGPCMD_RQ_MASK          0xff000000      /* master only */
 132 #define AGPCMD_SBAEN            (0x1 << 9)      /* must be 1 for 3.0 */
 133 #define AGPCMD_AGPEN            (0x1 << 8)
 134 #define AGPCMD_OVER4GEN         (0x1 << 5)
 135 #define AGPCMD_FWEN             (0x1 << 4)
 136 #define AGPCMD_RATE_MASK        0x7
 137 /* AGP 3.0 only bits */
 138 #define AGP3_CMD_ARQSZ_MASK     (0x7 << 13)     /* master only */
 139 #define AGP3_CMD_CAL_MASK       (0x7 << 10)     /* target only */
 140 #define AGP3_CMD_GART64BEN      (0x1 << 7)      /* target only */
 141
 142 #define AGP_DEVICE      "/dev/agpgart"
 143
 144 #ifdef __cplusplus
 145 }
 146 #endif
 147
 148 #endif /* _SYS_AGPGART_H */